TCEQ daily air quality forecast

Published 5:01 am, Monday, June 20, 2016

Monday 06/20/2016

If there is enough afternoon sunshine, winds may be light enough and incoming background levels high enough for ozone to reach "Unhealthy for Sensitive Groups" on the north and northwest side of the Dallas-Fort Worth area. Winds may also be light enough and incoming background levels high enough for ozone to reach "Moderate" or possibly higher in the Houston area and "Moderate" in the Beaumont-Port Arthur and Tyler-Longview areas. In all cases, the highest concentrations are expected in the afternoon and early evening.

Patchy light smoke from ongoing wildfires in eastern Arizona into central New Mexico is contributing to increased incoming PM2.5 background levels across parts of North Central Texas that should keep the daily PM2.5 AQI in the "Moderate" range in the Dallas-Fort Worth area extending as far south as the Waco-Killeen and Austin areas.

Slightly elevated incoming PM2.5 background levels associated with a mixture of continental haze and very light amounts of African dust combined with sufficient local add-on should be enough to raise the daily PM2.5 AQI into the "Moderate" range in the Houston area.

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Elsewhere in the state, moderate winds, lower incoming background levels, and, in South Texas, heavy cloud cover with precipitation should help to keep air quality in the "Good" range.

Tuesday 06/21/2016

If there is enough afternoon sunshine, winds may be light enough and incoming background levels high enough for ozone to reach "Unhealthy for Sensitive Groups" on the north and northwest side of the Houston area. Winds may also be light enough and incoming background levels high enough for ozone to reach "Moderate" or possibly higher in the Dallas-Fort Worth and El Paso areas and "Moderate" in the Beaumont-Port Arthur area. In all cases, the highest concentrations are expected in the afternoon and early evening.

Lingering elevated incoming PM2.5 background levels due to patchy light smoke from ongoing wildfires in eastern Arizona into central New Mexico should continue across parts of North Central Texas and keep the daily PM2.5 AQI in the "Moderate" range in the Dallas-Fort Worth and Waco-Killen areas and the upper end of the "Good" range in the Austin area.

Very light amounts of African dust may push into parts of South and South Central Texas and could raise background levels enough for the daily PM2.5 AQI to reach the lower end of the "Moderate" range in the Laredo and San Antonio areas.

Slightly elevated incoming PM2.5 background levels associated with a mixture of continental haze and very light amounts of African dust combined with sufficient local add-on could be enough to raise the daily PM2.5 AQI into the lower end of the "Moderate" range in the Houston area.

Elsewhere in the state, moderate winds and/or lower incoming background levels should help to keep air quality in the "Good" range.

Wednesday 06/22/2016 Outlook

Winds may be light enough and incoming background levels high enough for ozone to reach "Moderate" or possibly higher in the El Paso and Houston areas and "Moderate" in the Beaumont-Port Arthur and Dallas-Fort Worth areas, with highest concentrations expected in the afternoon and early evening.

Lingering elevated incoming PM2.5 background levels due to patchy light smoke from ongoing wildfires in eastern Arizona into central New Mexico should continue across parts of North Central and East Texas and could raise the daily PM2.5 AQI in the "Moderate" range in the Dallas-Fort Worth and Tyler-Longview areas and the upper end of the "Good" range in the Waco-Killeen area.

Very light amounts of African dust and smoke from agricultural and industrial burning in Mexico and Central America may combine over parts of South and South Central Texas and spread inland to raise background levels enough for the daily PM2.5 AQI to reach the lower end of the "Moderate" range in the Brownsville-McAllen, Laredo, and San Antonio areas and the upper end of the "Good" range in the Austin, Corpus Christi, Midland-Odessa, and Victoria areas.

Slightly elevated incoming PM2.5 background levels associated with very light amounts of African dust combined with sufficient local add-on could be enough to raise the daily PM2.5 AQI into the "Moderate" range in the Houston area.

Elsewhere in the Panhandle, moderate winds and/or lower incoming background levels should help to keep air quality in the "Good" range.

Thursday 06/23/2016 Outlook

Winds may be light enough and incoming background levels high enough for ozone to reach "Moderate" in the Dallas-Fort Worth, El Paso, and Houston areas, with highest concentrations expected in the afternoon and early evening.

Lingering elevated but decreasing incoming PM2.5 background levels due to patchy light smoke from ongoing wildfires in eastern Arizona into central New Mexico should continue across parts of North Central and East Texas and could raise the daily PM2.5 AQI in the lower end of the "Moderate" range in the Dallas-Fort Worth and Tyler-Longview areas.

Very light amounts of African dust combined with light smoke from agricultural and industrial burning in Mexico and Central America may continue over parts of South and Central Texas and spread into Southeast Texas to raise the daily PM2.5 AQI into the lower end of the "Moderate" range in the Austin, Beaumont-Port Arthur, Brownsville-McAllen, Houston, Laredo, and San Antonio areas and the upper end of the "Good" range in the Corpus Christi, Midland-Odessa, and Victoria areas.

Elsewhere in the state, moderate winds and/or lower incoming background levels should help to keep air quality in the "Good" range.